21556472

素因数分解:

$2^3\times 7^2\times {\mathrm{127}}^1\times {\mathrm{433}}^1$

素因数の和:580

約数の個数: 48

約数和(自身を含む): 47496960

約数和(自身を除く): 25940488

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 127, 196, 254, 392, 433, 508, 866, 889, 1016, 1732, 1778, 3031, 3464, 3556, 6062, 6223, 7112, 12124, 12446, 21217, 24248, 24892, 42434, 49784, 54991, 84868, 109982, 169736, 219964, 384937, 439928, 769874, 1539748, 2694559, 3079496, 5389118, 10778236, 21556472]

約数ペア:

[(1, 21556472), (2, 10778236), (4, 5389118), (7, 3079496), (8, 2694559), (14, 1539748), (28, 769874), (49, 439928), (56, 384937), (98, 219964), (127, 169736), (196, 109982), (254, 84868), (392, 54991), (433, 49784), (508, 42434), (866, 24892), (889, 24248), (1016, 21217), (1732, 12446), (1778, 12124), (3031, 7112), (3464, 6223), (3556, 6062)]